Prediction of the impaction efficiency of evaporating kerosense droplets on vee-gutter were carried out by solving numerically the equations describing the flow field passing over a vee-gutter, the droplet evaporation model and the droplet motion. All the results obtained under conditions which are similar to afterburners in aircraft propulsion systems were then summarized by dimensional analysis, yielding an expression for calculating the impaction efficiency. It is shown from the expression that the key factor influencing the impaction efficiency is the initial droplet diameter, i.e., the impaction efficiency is proportional to the power of 1.44 of the initial droplet diameter; The impaction efficiency decreases with increasing ambient temperature and pressure, the distance from the droplet injection section to the vee-gutter and the width of the vee-gutter and increases with the stream velocity. The expression obtained in this paper can be used to estimate approximately the impaction efficiency in afterburners of aircraft propulsion systems.
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ASME 1986 International Gas Turbine Conference and Exhibit
June 8–12, 1986
Dusseldorf, West Germany
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7930-6
PROCEEDINGS PAPER
Impaction Efficiencies of Evaporating Kerosene Droplets on Vee-Gutter Flame Stabilizer
Zhang Qing-Fan,
Zhang Qing-Fan
Nanjing Aeronautical Institute, Nanjing, The People’s Republic of China
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Kong Zu-Kai,
Kong Zu-Kai
Nanjing Aeronautical Institute, Nanjing, The People’s Republic of China
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Zhou Qi-Hong
Zhou Qi-Hong
Nanjing Aeronautical Institute, Nanjing, The People’s Republic of China
Search for other works by this author on:
Zhang Qing-Fan
Nanjing Aeronautical Institute, Nanjing, The People’s Republic of China
Kong Zu-Kai
Nanjing Aeronautical Institute, Nanjing, The People’s Republic of China
Zhou Qi-Hong
Nanjing Aeronautical Institute, Nanjing, The People’s Republic of China
Paper No:
86-GT-174, V003T06A013; 7 pages
Published Online:
April 1, 2015
Citation
Qing-Fan, Z, Zu-Kai, K, & Qi-Hong, Z. "Impaction Efficiencies of Evaporating Kerosene Droplets on Vee-Gutter Flame Stabilizer." Proceedings of the ASME 1986 International Gas Turbine Conference and Exhibit. Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations. Dusseldorf, West Germany. June 8–12, 1986. V003T06A013. ASME. https://doi.org/10.1115/86-GT-174
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